Motion P1788/M0005.02_Table_of_operations vote : NO

[Dominique Lohez <dominique.lohez@xxxxxxx>]

My vote is NO

I would vote YES  if
         1)   In the denotation List  of denotations
                 The reference to the empty set as an element of the 
extended set of intervals is removed
         2) In the division table  for  when 0 is an element of the 
interval b
              The second colun  has the following content
                            header : The interval     [0,0] is replaced 
by any interval  including 0
                            result: On must always be (-infinity, 
+infinity)
                   
Rationale

While the function f :R-> R f(x)=1/x is not defined for x =0 , and no 
extension is possible
When working with intervals   such extensions are possible leading to 
the results indicated above


Dominique


--
Dr Dominique LOHEZ
ISEN
41, Bd Vauban
F59046 LILLE
France

Phone : +33 (0)3 20 30 40 71
Email: Dominique.Lohez@xxxxxxx